Conveying apparatus.



PATENTBD JULY 14, 1908.

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' R. A. CHAMBERS.

CONVEYING APPARATUS.

APPLICATION FILED NOV. 5. 1906.

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' Ink/671107 I www v UNITED STATES PATENT OFFICE.

CONVEYING APPARATUS.

To all whom it may concern:

Be it known that I, ROBERT ALLISON CHAMBERS, of the town of New Glasgow, in the Province of Nova Scotia and Dominion of Canada, have invented certain new and useful Improvements in Conveying Apparatus, and do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in conveying apparatus, and its object is to provide a rapid and inexpensive means for conveying ore, coal, or the like to or from the stock pile.

A further object is to so arrange the elements of the apparatus that both the fall and traction ropes may be constantly maintained in tension.

A still further object is to provide a conveying apparatus having only two operating ropes in addition to the suspension cable.

Hitherto in the .construction of conveyers of this type, it has been found necessary to employ three operating ropes and three engine drums, thereby rendering the apparatus expensive. Hereinafter I will disclose means whereby a conveyer may be successfully and guickly operated with only two ropes in adition to the suspension cable. To accomplish this end, I providea carriage traveling on an approximately horizontal suspension cable. One end of the traction ro e is fastened to a fixed point passed aroun a pulley mounted on the carriage and thence over two pulleys fixed at op osite ends of the suspension cable, to one rum of a hoisting engine. A second or fall rope is attached to the carriage and passes over the sheave of the bucket block and over a second pulley mounted on the carriage, and thence to the second drum of the hoisting engine over a pulley at the end of the suspension cable adjacent the engine.

In the drawings which illustrate my invention; Figure 1 is a diagrammatic view of the device in the act of filling the bucket. Fig. 2 is an enlarged elevation of the carriage, end block and fall block, and shows the arrangement of the ropes;

In the above defined figures, 1 designates a stock pile of ore or the like having a mooring post 2 fixed at any suitable point thereon.

3 is a trestle tower placed at a distance from the stock pile and adjacent the bunkers Specification of Letters Patent.

Application filed November 5, 1906.

Patented July 14, 1908;

Serial No. 342,030.

4. At the foot of the tower is a hoisting engine 5 having two separate and independent drums 6 and 7, respectively. Stretched between the post 2 and the tower 3, is a suspension cable 8 on which travels the carriage 9. Fixed to the post 2 is a block 10 and to the top of the tower 3 a pair of pulleys 11. The bucket 12 is suspended from its block 13 by chains 14. A rope 15 is fixed to the block 10 and passes over a pulley 16 on the carriage 9, over the sheave of the block 10, and thence over one of the pulleys 11 to the drum 7 of the engine 5. Th1s rope is hereafter referred to as the traction rope. A second or fall rope 17 is fixed at one end to the carriage 9 and passes around the sheave of the fall block 13, over the pulleys 18 and 11, to the second drum 6 of the engine.

The 0 eration of the device consists, supposing tfie parts to be in the position shown in Fig. 1, of locking the drum 7 and thereby holding the carriage 9 in its place against the tension of the fall rope due to raising the bucket. When the bucket is raised to the carriage, the drum 7 is unlocked and the rope 15 allowed to unwind at the same rate that the fall rope 17 winds up. By this means, both ropes are kept in tension and the carriage and pendent bucket drawn toward the tower 3. To return the bucket to the foot of the stock pile, the drum 7 is rotated to wind up the traction rope 15 and the drum 6 allowed to revolve so that the fall rope 17 unwinds simultaneously with the winding of the traction rope. When the bucket is over the desired point, the drum 7 is locked and the drum 6 allowed to revolve freely so that the weight of the bucket 12 will unwind the fall rope 17.

The advantages of the device are obvious. From the foregoing description it will be readil seen that the conveyer may be quick y and easily operated, and that the installation will be comparatively inexpensive.

Having thus described my invention so that the same may be readily understood by those skilled in the art to which it appertains, what I claim and desire to secure by Letters Patent, is

1 In a conveyer, a suspension cable, a carriage thereon, a air of pulleys mounted on said carriage, a bibck at one end of the span, an engine having two independent drums at the opposite end of said span, a traction rope fixed to said block and passing over one of the pulleys of said carriage and over the moved in one direction, a fall rope sheave of said block to one of the drums of said engine whereby the carria e will be ed to the carriage and passing over the other of said pulleys mounted on the carriageto the other drum of the engine, whereby the carriage will be moved in the opposite direction on the release of the traction rope, a fall block in the loop of the fall rope, and a bucket suspended from said fall block and adapted to be raised simultaneously with the movement of the carriage by the fall rope.

2. In a conveyer, a suspension cable, a carriage on said cable, a pair of sheaves on said carriage, a block at one end of the span, an engine having two independent drums at the other end of the span, a traction rope fixed to said block and passing over one of the sheaves of the carriage and over the block to riage may be moved in the opposite direction on the release of the traction rope, a fall block in the loop of said fall rope adapted to be raised simultaneously with the movement of the carriage by the fall rope, and adapted to be raised vertically by the fall rope on the 1 locking of the traction rope.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

ROBERT ALLISON CHAMBERS.

Witnesses:

HERBERT KNIGHT, CHARLES H. EMERSON. 

